Home / 71,772,852.80-107,684,162.40-31,412,302.40

Finding the Fourth Proportional to 71,772,852.80, 107,684,162.40 and 31,412,302.40

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Solution

The fourth proportional to 71,772,852.80, 107,684,162.40 and 31,412,302.40 is: 47,129,344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,772,852.80 : 107,684,162.40 = 31,412,302.40 : x
  2. Step 2: Convert to fraction form
    71,772,852.80/107,684,162.40 = 31,412,302.40/x
  3. Step 3: Cross multiply
    71,772,852.80x = 107,684,162.40 × 31,412,302.40
  4. Step 4: Simplify right side
    71,772,852.80x = 3,382,607,472,999,510
  5. Step 5: Solve for x
    x = 3,382,607,472,999,510/71,772,852.80
  6. Step 6: Final answer
    x = 47,129,344.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.